Aider vs Kilo Code: what developers actually say
Based on 65 opinions on Hacker News from developers who discussed these two, most of them first-hand users.
Aider and Kilo Code are close on approval, 60 versus 63. Aider has the larger evidence base, 39 authors and 35 firsthand comments against 21 and 20, and its support comes from code quality (5 positive, 1 negative) and large codebases (3 positive, 1 negative), while UX runs negative at 1 positive and 3 negative. Kilo Code leads on customization (4 positive, 0 negative) and cost or pricing (4 positive, 1 negative), but reliability (2 positive, 3 negative) and autonomy (2 positive, 3 negative) are weak. Both mostly lose head-to-head mentions to Claude Code (Aider 6, Kilo Code 2), so pick Aider for quality-focused terminal work and Kilo Code for an adjustable, low-cost IDE extension.
Choose Aider if
- Care most about code quality (5 positive, 1 negative)
- Work in large codebases (3 positive, 1 negative)
- Want a terminal agent that keeps data local by default
Choose Kilo Code if
- Want deep customization (4 positive, 0 negative)
- Care about cost and pricing (4 positive, 1 negative)
- Prefer an IDE extension with visible diffs and session history